Crower 74131F Features:

Stainless steel shaft-mount rocker arm set for SBC AFR 180/210 old bolt pattern, Edelbrock Victor Jr, and Canfield Small Runner cylinder heads with 5/8 in. shafts. CNC precision-machined from ball-race alloy steel, heat-treated twice, and micro-finish ground in-house for added rigidity, valvetrain accuracy, and consistent performance. Fully rollerized precision needle-bearing fulcrum with highly secured axles and a hardened tip wheel helps reduce valve-tip scrubbing under demanding racing use. Aircraft-quality high-temperature alloy lash adjusters support reliable adjustment, while stainless steel construction offers longer service life than comparable aluminum designs.

Shaft Rockers Afr 180/210 Stainless Steel, 5/8 In. Shafts, Features:

• Stainless steel shaft-mount rockers for SBC AFR 180/210 old bolt-pattern, Edelbrock Victor Jr, and Canfield small-runner heads with 5/8 in. shafts
• CNC-machined ball-race alloy steel construction, double heat-treated and micro-finish ground for rigidity and valvetrain accuracy
• Fully rollerized needle-bearing fulcrum with secured axles and hardened tip wheel for reduced scrubbing and stable high-rpm operation
• Aircraft-quality high-temperature alloy lash adjusters for precise valve setting and dependable performance under sustained racing heat
• Longer service life than aluminum rockers, with track-friendly installation and maintenance for dirt late model and marine endurance use